The MSC750SMA170B4 from Microchip Technology is a MOSFET with Continous Drain Current 7 A, Drain Source Resistance 750 to 940 milliohm, Drain Source Breakdown Voltage 1700 V, Gate Source Voltage -10 to 23 V, Gate Source Threshold Voltage 1.8 to 3.25 V. Tags: Through Hole. More details for MSC750SMA170B4 can be seen below.